Papilio anchisiades

Features
By Nicole Buehler

Geographic Range

Papilio anchisiades can be found from south Texas, USA to Argentina, but have also been reported in Kansas, southeast Arizona, and west Texas in the United States.

Habitat

Papilio anchisiades live in a variety of habitats. The habitats range from tropical rainforests to cultivated land to citrus groves and gardens.

Physical Description

Papilio anchisiades are large and mostly black with a wingspan of 7-10 cm. Unlike most swallowtails, ruby-spotted swallowtails lack tails on their hindwings. Their most distinctive characteristics are pink, ruby, or purplish spots on the hindwings. Females can be detected by a diffuse white patch on the upper forewing. In the early stages, the caterpillars are green and brown with white markings and bulges on their backs. The pupae are light-brown in color with ligh green spots, and are thicker in their anterior portion.

  • Sexual Dimorphism
  • sexes colored or patterned differently

Development

Papilio anchisiades go through four life stages (egg, caterpillar, Chrysalis (pupa), adult (butterfly)).

Reproduction

Female Papilio anchisiades lay their eggs in groups on host plant leaves. The most common host plants for ruby-spotted swallowtails are Citrus limon and Casimiroa edulis in Mexico. The female butterflies usually mate several times in their life time, and release many eggs each time.

Behavior

During reproduction and in the caterpillar stages of life, Papilio anchisiades is social. The females lay eggs on plant leaves in groups, and caterpillars lay on leaves in clusters during the day and feed at night. They also molt together. The caterpillars are equipped with special scent organs that spray an odor to ward off predators when alarmed. Ruby-spotted swallowtails take several flights during May and October, and their flight patterns are diurnal.

Communication and Perception

Papilio anchisades spray a warning chemical to ward off predators.

Food Habits

As caterpillars, ruby-spotted swallowtails feed on citrus trees such as Citrus , Casimiroa , Zanthoxylum , and as adults, they use their proboscis to feed on flower nectar.

  • Plant Foods
  • leaves
  • nectar

Economic Importance for Humans: Positive

Ruby-spotted swallowtails do not have a profound affect on humans except that it is a favorite of butterfly collectors and owners of gardens because of their beauty.

Economic Importance for Humans: Negative

As far as scientists know there are no negative affects on humans by these butterflies.

Conservation Status

Papilio anchisiades has a stable population throughout its main habitats, however in some parts of the U.S., like Arizona and Kansas, this species is considered rare.

Other Comments

The Ruby-spotted swallowtail is a popular butterfly to raise, and is often seen in flower gardens. This species is usually part of many butterfly collections. (Carter, David 1992)

Encyclopedia of Life

Contributors

Matthew Wund (editor), University of Michigan-Ann Arbor.

Nicole Buehler (author), Southwestern University, Stephanie Fabritius (editor), Southwestern University.

Nearctic

living in the Nearctic biogeographic province, the northern part of the New World. This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico.

World Map

native range

the area in which the animal is naturally found, the region in which it is endemic.

Neotropical

living in the southern part of the New World. In other words, Central and South America.

World Map

native range

the area in which the animal is naturally found, the region in which it is endemic.

temperate

that region of the Earth between 23.5 degrees North and 60 degrees North (between the Tropic of Cancer and the Arctic Circle) and between 23.5 degrees South and 60 degrees South (between the Tropic of Capricorn and the Antarctic Circle).

tropical

the region of the earth that surrounds the equator, from 23.5 degrees north to 23.5 degrees south.

terrestrial

Living on the ground.

rainforest

rainforests, both temperate and tropical, are dominated by trees often forming a closed canopy with little light reaching the ground. Epiphytes and climbing plants are also abundant. Precipitation is typically not limiting, but may be somewhat seasonal.

agricultural

living in landscapes dominated by human agriculture.

ectothermic

animals which must use heat acquired from the environment and behavioral adaptations to regulate body temperature

heterothermic

having a body temperature that fluctuates with that of the immediate environment; having no mechanism or a poorly developed mechanism for regulating internal body temperature.

bilateral symmetry

having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Synapomorphy of the Bilateria.

metamorphosis

A large change in the shape or structure of an animal that happens as the animal grows. In insects, "incomplete metamorphosis" is when young animals are similar to adults and change gradually into the adult form, and "complete metamorphosis" is when there is a profound change between larval and adult forms. Butterflies have complete metamorphosis, grasshoppers have incomplete metamorphosis.

iteroparous

offspring are produced in more than one group (litters, clutches, etc.) and across multiple seasons (or other periods hospitable to reproduction). Iteroparous animals must, by definition, survive over multiple seasons (or periodic condition changes).

sexual

reproduction that includes combining the genetic contribution of two individuals, a male and a female

fertilization

union of egg and spermatozoan

internal fertilization

fertilization takes place within the female's body

oviparous

reproduction in which eggs are released by the female; development of offspring occurs outside the mother's body.

diurnal
  1. active during the day, 2. lasting for one day.
motile

having the capacity to move from one place to another.

social

associates with others of its species; forms social groups.

chemical

uses smells or other chemicals to communicate

visual

uses sight to communicate

tactile

uses touch to communicate

chemical

uses smells or other chemicals to communicate

ecotourism

humans benefit economically by promoting tourism that focuses on the appreciation of natural areas or animals. Ecotourism implies that there are existing programs that profit from the appreciation of natural areas or animals.

herbivore

An animal that eats mainly plants or parts of plants.

folivore

an animal that mainly eats leaves.

nectarivore

an animal that mainly eats nectar from flowers

References

Carter, J. 1992. Butterflies and Moths . London: Dorling Kindersley Limited.

Forestiero, S., V. Sbordoni. 1998. Butterflies of the World . Buffalo: Firefly Books Ltd..

Holland, W. 1907. The Butterfly Book . New York: Doubleday, Page and Company.

Northern Prairie Wildlife Research Center, 2001. "Butterflies of North America" (On-line). Accessed 4/10/01 at http://www.npwrc.usgs.gov/resource/distr/lepid/bflyusa/usa/696.htm .

Scott, J. 1986. The Butterflies of North America . Stanford: Stanford University Press.

Toole, C. 1986. The Encyclopedia of Insects . New York: Facts on File Inc..

To cite this page: Buehler, N. 2001. "Papilio anchisiades" (On-line), Animal Diversity Web. Accessed {%B %d, %Y} at https://animaldiversity.org/accounts/Papilio_anchisiades/

Last updated: 2001-01-17 / Generated: 2025-10-03 00:57

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